new trouble for superstar justin bieber. Former nfl star keyshawn johnson confronted him for driving recklessly reportedly at top speehrough their neighborhood. Abc's cecilia vega has the story. Reporter: It might seem like an unfair match, the whopping wide receiver versus the pint-sized pop star but that's exactly what happened behind the gates of this exclusive southern california compound when all 6'4" of former nfl player keyshawn johnson confronted the 5'7" biebs for allegedly turning their wide winding mansion-lined street into a racetrack. &#9834; If I was your boyfriend &#9834; Reporter: It's not too far off from the racing in justin bieber's video. Justin's reps say the raced his white ferrari near a family friend hi memorial day barbecue. That's when the retired football star turned espn broadcaster jumped in his car reportedly a prius and trailed behind bieber's ferrari. Johnson blocked his neighbor's driveway and busted his way through security to tell the 19-year-old to slow down. Now police call bieber a reckless driving suspect. We take this very seriously and this is the kind of behavior that is unacceptable to be done by anybody anywhere. Reporter: The biebs' reps say it wasn't justin behind the wheel but several witnesses don't believe it. They say bieber was driving. Does the biebs have a need for speed? Earlier this month police in dubai slapped a lamborghini driving bieber with several tickets. Get arrested -- okay, sorry about that. Reporter: Last summer in california another ticket. This one for driving more than 100 miles per hour. &#9834; &#9834; anything you want &#9834; Reporter: It appears this pop star with a golden voice also has a lead foot. For "good morning america," cecilia vega, abc news, los angeles.

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